Twitter is vapid, Twitter is narcissisticTwitter is actually terribly useful if you can ignore knee-jerk backlash. The casual, instant nature of the service lends itself to solving small problems quickly, distributing live-on-the-scene news reports, and keeping track of people. Here are six easy ways to transform Twitter from a time sink into an indispensable tool.

Follow the News

In general, the Web at large is still a more complete news source. Twitter is for keeping track of one niche you care about, staying informed on a news-heavy day, and getting live updates from Twitter users on the scene (like from an Apple keynote or a plane crash in the Hudson River). @CNN posts headlines with story links, but I prefer the one-sentence story summaries on the unofficial @cnnbrk. @NYTimes posts headlines and links too, but it also follows the accounts of 80 NYT sections and writers. Other popular news feeds include @BreakingNewsOn, @nprnews, @weirdnews, @macrumors, @MarsPhoenix, @Astronautics, and several feeds from Digg. PCMag offers a feed for tech news, as do Gearlog and AppScout. You can also hand-roll feeds from a news site's RSS using Twitterfeed, but don't publicize it too hard lest the site owners complain.

Get Better Customer Service

Conducting customer service on Twitter doesn't make much sensefor the company. It just won't scale well once Twitter gets another ten million users. But right now you can get more attention than you deserve as a single customer by talking to one of these companies on Twitter: Zappos, Starbucks, Whole Foods, JetBlue, and many, many others. Next time you have a customer complaint, just Google the search string "[Company name] Twitter" to see if you can make your case in 140 characters. Or just post a gripe about the company or product and wait for someone in the Twitterverse to respond.

Ask for Help

As with blogs and forums, Twitter is a great place to ask questions you're too lazy to find the answers for yourself. And the service is absolutely perfect for asking favors ("Can anyone help me move on Friday?"), gathering opinions ("Do organic bananas taste better?"), or getting advice ("How much RAM should I get for my new MacBook?") Twitter takes a problem you can solve by spending 5 minutes at a computer and makes it solvable in 10 seconds from the produce aisle. Of course, this works best when your real-life friends are following you, as developer Owen Winkler explains. Especially if you ask your followers to help you lose weight.

The flip side is that Twitter communication is meant to be two-way. Build your network of followers and your Twitter karma by jumping in with answers and help of your own.

Promote Your Work/Company

Again, Twitter isn't the first service to solve this problem; the immediacy of the service just makes it a good option. If you don't abuse it, you can use an occasional link to promote an app you've built, an article you've written, or a longer plea for someone to please, please help you move on Friday. Just keep it to three links a week; any more and you'll alienate followers who already know about your work or couldn't care less.

Keep Up with Friends

Other than entertaining strangers, this is my favorite use of Twitter. One message at a time, knowing who has a cold or who got in a fender bender is dull. But in aggregate, skimming your Twitter feed gives you a sixth sense about what your social circle is up to, what moods they're in, whether they're free for a drink that night and whether you'd better offer to pay. Unlike the more intense location-based services, Twitter still has a built-in casualness: You're not necessarily asking people to meet you right here right now, you're just asking if anyone's free for lunch.